New Users (or anyone else) is/are welcome to ask questions in here to which the answers might be obvious to most but you simply don't know yourself or are unsure where to find the answer. You can also ask questions about the working of the forum or anything else you may think of.

I'm driving a 1996 Coaster model HZB50.Some sadist put the expansion tank under the bus in front of the driver's feet.

Checking the level involves lying on your back on the ground, worming under the bus, pulling the lid off the tank and then putting a small dip-stick, or your finger , into the tank to check the level.No, the tank is not transparent enough to see the level from the outside.Even with a torch.